Filter out duplicate numbers in a list?

Replies to This Discussion

Permalink Reply by Michael Pryor on March 27, 2012 at 4:18pm

There is in the tab sets>sets the delete consecutive component. Also, there is find similar member component there, which will let you search a list for specific values. Also if you are trying to remove duplicate lines or points, kangaroo has two very handy components that specifically do that.

Permalink Reply by Filip Loguin on March 27, 2012 at 5:26pm

Ok, good to know. However in my case its necessary to know which indexes that are effected. Im working with parallel lists, one for the geometry and another including additional data for that specific geometry item. Thanks though

Permalink Reply by Filip Loguin on March 28, 2012 at 7:54am

oh, yes this was useful for me, still need the vb but this saves some space.

Permalink Reply by Stan Carroll on January 7, 2011 at 9:26am

Were you ever successful a making this component?  It would really come in handy.

 

I tried shifting a list of points and using the distance component to check to see if it is the same point.  There is a strange thing happening. points with the exact same coordinates are returning a distance albeit it very small 4e-13.  Any thoughts on why this is happening.

 

Stan

Permalink Reply by taz on January 7, 2011 at 10:47am

Stan,

 

Kangaroo has a remove duplicate points component.  You may want to try that.

Permalink Reply by Stan Carroll on January 7, 2011 at 10:56am

Great! Thanks Taz,

I will give that a try.

Stan

Permalink Reply by Chris Hanley on January 7, 2011 at 12:17pm

I've also "cheated" by using the kangaroo RemoveDuplicate Points component, to remove duplicate values from a list.

Permalink Reply by taz on January 7, 2011 at 12:56pm

That just came up again too...  Other ways to get unique values:

 

http://www.grasshopper3d.com/forum/topics/specific-data-in-lists

Permalink Reply by sam brisendine on January 3, 2012 at 12:51am

Heres yet another way to find unique values...in a dumb but simple way using values to create a line to split.....in the image..its the lower portion

the upper portion is dividing a list of surfaces into two lists based on the number of sides it has

Attachments:

• remove_duplicates_sort_sides.ghx, 215 KB

Permalink Reply by Ivan O'Garro on August 16, 2011 at 11:58pm

Taz,

 

I'd like to separate the coordinates in list B from the coordinates in list A.

Is there a way to remove the elements that fall in the intersection from the list so that there are no duplicated circles in the inner zone?

Attachments:

• Perforation Zone Script.jpg, 351 KB
• Capture.JPG, 73 KB

Permalink Reply by Arthur Mamou-Mani on October 23, 2009 at 10:05am

It would be great if you could replace the index of specific points by another one with a similar VB component (i.e. I would like 0 to become 99 in this case)...Any ideas?
Many thanks,
Arthur

Permalink Reply by Matthew Underwood on September 27, 2011 at 2:34pm

Is there any way to do this with a list of non-numeric items? And with a list that is continually expanding?

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